Evidence map›Paper›PMID 33093035›Full record

ArticleBMJ open2020

Histopathological features of prostate cancer conspicuity on multiparametric MRI: protocol for a systematic review and meta-analysis.

Joseph M Norris, Lina M Carmona Echeverria, Benjamin S Simpson, Rhys Ball, Alex Freeman, Daniel Kelly, Alex Kirkham, Hayley C Whitaker, Mark Emberton

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.1field-weighted citation impact, top 45% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 2 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Joseph M NorrisUCL Division of Surgery and Interventional Science, University College London, London, UK joseph.norris@ucl.ac.uk.ORCID 0000-0003-2294-0303
Lina M Carmona EcheverriaUCL Division of Surgery and Interventional Science, University College London, London, UK.
Benjamin S SimpsonUCL Division of Surgery and Interventional Science, University College London, London, UK.ORCID 0000-0003-3685-6110
Rhys BallDepartment of Pathology, University College London Hospitals NHS Foundation Trust, London, UK.
Alex FreemanDepartment of Pathology, University College London Hospitals NHS Foundation Trust, London, UK.
Daniel KellySchool of Healthcare Sciences, College of Biomedical and Life Sciences, Cardiff University, Cardiff, South Glamorgan, UK.ORCID 0000-0002-1847-0655
Alex KirkhamDepartment of Radiology, University College London Hospitals NHS Foundation Trust, London, UK.
Hayley C WhitakerUCL Division of Surgery and Interventional Science, University College London, London, UK.
Mark EmbertonUCL Division of Surgery and Interventional Science, University College London, London, UK.
University College London · GBUniversity College London Hospitals NHS Foundation Trust · GBCardiff University · GB

Funding

Medical Research Council MR/S00680X/1
6 · The paper itself

Abstract

introductionMultiparametric MRI (mpMRI) has improved risk stratification for men with suspected prostate cancer. Indeed, mpMRI-visible tumours tend to be larger and of higher pathological grade than mpMRI-invisible tumours; however, concern remains around significant cancer that is undetected by mpMRI. There has been considerable recent interest to investigate whether tumour conspicuity on mpMRI is associated with additional histopathological features (including cellular density, microvessel density and unusual prostate cancer subtypes), which may have important clinical implications in both diagnosis and prognosis. Furthermore, analysis of these features may help reveal the radiobiology that underpins the actual mechanisms of mpMRI visibility (and invisibility) of prostate tumours. Here, we describe a protocol for a systematic review of the histopathological basis of prostate cancer conspicuity on mpMRI. METHODS AND ANALYSIS: A systematic search of the MEDLINE, PubMed, Embase and Cochrane databases will be conducted. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines will be used to guide screening, thematic reporting and conclusions drawn from all eligible studies. Included papers will be full-text, English-language articles, comparing the histopathological characteristics of mpMRI-visible lesions and mpMRI-invisible tumours. All studies published between January 1950 and January 2020 will be eligible for inclusion. Studies using confirmatory immunohistochemistry for the identification of immune subsets or structural components will be included. Study bias and quality will be assessed using a modified Newcastle-Ottawa scale. To ensure methodological rigour, this protocol is written in accordance with the PRISMA Protocol 2015 checklist. If appropriate, a meta-analysis will be conducted comparing histopathological feature frequency between mpMRI-visible and mpMRI-invisible disease. ETHICS AND DISSEMINATION: No ethical approval will be required as this is an academic review of published literature. Findings will be disseminated through publications in peer-reviewed journals and presentations at national and international conferences. PROSPERO REGISTRATION NUMBER: CRD42020176049.

Indexed as

Multiparametric Magnetic Resonance ImagingProstatic NeoplasmsHumansMaleMeta-Analysis as TopichistopathologyMRIprostate diseaseurological tumours

Identifiers

PMID33093035
PMCPMC7583062
OpenAlexW3094475348

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.